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AcroBiosystems GMP Human IL-4 Protein
Beskrivelse
Interleukin-4, is a cytokine that induces differentiation of naive helper T cells (Th0 cells to Th2 cells). In the presence of IL-4 and IL-13, cytokines that are produced in a Th-2 type response, particularly during allergy and parasitic infections, macrophages become differentially activated, And this cytokine is a ligand for interleukin 4 receptor. The interleukin 4 receptor also binds to IL13, which may contribute to many overlapping functions of this cytokine and IL13. STAT6, a signal transducer and activator of transcription, has been shown to play a central role in mediating the immune regulatory signal of this cytokine. Recently, researcher found that the cytokine IL-4 plays a key role in development of innate CD8+ T cells in the thymus of several gene-deficient mouse strains, including Itk, KLF2, CBP and Id3, without previous exposure to antigen.
Tekniske data
Tekniske data
| Adgangsnummer | Uniprot |
| Karakterisering | IL-4 Structure This protein carries no tag. The protein has a calculated MW of 15.0 kDa. The protein migrates as 19 kDa±3 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation. |
| Format | Powder-GMP |
| Formulering | Lyophilized from 0.22 μm filtered solution in PBS, pH 7.4 with protectants. Contact us for customized product form or formulation. |
| Kvalitetskontrol test | <0.5 ng/μg of protein tested by ELISA.∣<0.02 ng/μg of protein tested by qPCR.∣Less than 10 EU/mg, tested by the LAL method in compliance with USP 85 and Ph. Eur. 2.6.14.∣Sterility testing was performed using the membrane filtration method in compliance with USP &CM and Ph. Eur. 2.6.1.∣Negative |
| Mængde | 10 mg |
| Kilde | GMP Human IL-4 Protein (GMP-L04H26) is expressed from human 293 cells (HEK293). It contains AA His 25 - Ser 153 (Accession # ). Predicted N-terminus: His 25 Request for sequence |
| Biologisk aktivitet | GMP Human IL-4 Protein (Cat. No. GMP-L04H26) stimulates proliferation of TF-1 human erythroleukemic cell line. The specific activity of GMP Human IL-4 Protein is >1.20x10^7 IU/mg, which is calibrated against human IL-4 WHO International Standard (NIBSC code: 88/656) (QC tested).∣The activity of GMP Human IL-4 Protein (Cat. No. GMP-L04H26) was higher than other competing products.∣The Cell based assay shows that GMP Human IL-4 Protein (Cat. No. GMP-L04H26) is stable at 37°C for 24 hours.∣The Cell based assay shows that GMP Human IL-4 Protein (Cat. No. GMP-L04H26) is stable at 4°C for 180 days.∣The Cell based assay shows that GMP Human IL-4 Protein (Cat. No. GMP-L04H26) is stable after freezing and thawing 3 times.∣The Cell based assay shows batch-to-batch consistency between Acro's GMP and PG IL-4. |
| Arter | Human |
| Sterilitet | Sterile |
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